Hank pole or the like for use in dyeing and analogous apparatus



Feb. 13, 1945.

s; R. 'r.' FREEMAN HANK POLESOR THELIKE FOR USE IN DYEING AND ANALOGOUSAPPARATUS Filed Nov. 30, 1942 Patented Feb. 13, 1945 HANK POLE OR THELIKE FOR USE IN DYE- ING AND ANALOGOUS APPARATUS Samuel Richard ThompsonFreeman, Leicester,

England, assignor to Mellor Bromley & Co. Limited, Leicester, England, aBritish company Application November 30, 1942, Serial No. 467,374 InGreat Britain December 8, 1941 1 Claim. ((31. 68212) This inventionappertains to hank poles, rods or like supports of the kind adapted foruse in dyeing and analogous apparatus for the purpose of carryingtextile materials, such as yarns i'n hank form and fabrics, which are tobe subjected to treatment by fluids circulated or passed through them.

It is principally the intention to apply the invention to hank poleswhich are adapted to be mounted in a frame and lowered into a dye liquorsuchwise'that the latter can readily be circulated, e. g. by means of ascrew-type propeller, through hanks of yarns hung on the poles.

Those skilled in the art of dyeing and analogous treatment of hanks ofyarn and other similar material appreciate that an important desideratumis to effect thorough impregnation of the material with the dye or othermedium, and this can, of course, only be done by maximum exposure of thematerial tovthe action of the said medium.

Heretofore it has been found that there is a tendency for dyestufi notto penetrate those portions of a hank which pass round and areconsequently to some extent in contact with the surface of a supportingpole. This is usually due to the cross-sectional shape of the pole.

' With a view to obviating this dimculty various sections designed toenable dye liquor to be brought into contact with the yarn where ittouches the pole have previously been proposed or used. For instance, itis known to use a pole of a longitudinally fluted or channelledcharacter so that contact between hanks and the pole occurs only at thejunctures of or fillets between adjacent flutes or channels. One suchform is a substantially triangular pole having inwardly curved orconcave sides; another is a triangular pole left open on one side.

In all existing poles, however, there is a considerable surface area notonly for undesirable contact with the yarn but also to cause anobstruction to the flow of dye liquor through said yarn.

The general object of the present invention, therefore, is to provide ahank pole, rod or like support of the kind concerned of an improvedconstruction conducive to thorough treatment of hanks of yarn or otherappropriate material or fabric-the principal aim being the provision ofa hank pole designed to obviate the specific disadvantages aforesaid.

'A specific example of the invention as embodied in a hank pole for usein a hank dyeing machine will now be described with reference to theaccompanying drawing which shows a general perspective view of a portionof a skeleton hank pole.

The hank pole illustrated comprises two parallel spaced side plates 1which are connected together by a series of tubular distance pieces 2.The side plates l are mainly flat, being disposed in spaced verticalplanes, although, as will be seen, their lower edge portions la aresplayed.

outwards somewhat. Both the lower edge portion la and the upper edgeportion lb of each side plate is folded inwardly upon itself suchwise asto provide a reinforced, rounded edge. Each tubular distance piece 2 isturned down, i. e. reduced in diameter, at its opposite ends whichlatter are fitted into appropriately positioned holes formed in theopposed side plates and secured in any suitable manner. For example, thereduced ends, one of which is more clearly indicated in dotted lines at2a, may project slightly through the holes to enable them to be swagedor similarly prevented from withdrawal. The distance pieces 2 extend atright angles to the side plates l, at regular intervals apart, and offerpractically no obstruction to the flow of dye liquor. Both the depth andthe width of a pole such as that just described may conveniently be fromapproximately 1%, to 1 /2".

Although any suitable material may be used in the manufacture of theimproved pole, stainless or non-corroding sheet metal is recommended.For example, stainless steel known as Dyebrite or Staybrite may be used.This material has a highly polished surface and consequently poles, rodsor the like made thereof are unaiiected by liquors used in dye-house'sand will not chafe or otherwise damage hanks of the most delicate yarns.

What I claim then is:

A hank pole adapted for use in dyeing apparatus for the purpose ofcarrying yarns in hank form which are to be subjected to treatment bydye liquor circulated through them, said pole comprising two spaced sideplates arranged substantially edgewise with respect to the direction offlow of the said liquor, the upper and lower edge portions of saidplates being folded inwardly upon themselves to provide reinforced,rounded edges and the said lower edge portions being, moreover, splayedoutwards, and tubular distance pieces connecting said plates together insuch a way as to leave the pole wide open at opposite sides, therebypermitting the medium to pass therethrough laterally withoutobstruction.

SAMUEL RICHARD THOMPSON FREEMAN.

